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MAXIGAS Nitrogen Generator. MAXIGAS (Level 2 ) Service Training. January 1, 2020. 1). N2 Display (Controls): a). Overview. b). Controls / Functionality. 2). N2 Controller (Software): a). Default Display Screen. b). Top Level Menu Structure (Unprotected).
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MAXIGAS Nitrogen Generator MAXIGAS (Level 2 ) Service Training. January 1, 2020
1). N2 Display (Controls):a). Overview. b). Controls / Functionality. 2). N2 Controller (Software):a). Default Display Screen. b). Top Level Menu Structure (Unprotected). c). Service 1 : - Password Entry. d). Top Level Menu structure (Protected). e). Sub-menu parameter changes. 3). Menu 3 – Customer Settings: 4). Menu 4 – Service 1 : Setup: 5). Menu 5 – Service 2 : Timers: 6). Menu 6 – Service 3 : I/O Menu:. Section headings:
a). Overview: Standby Refer to the next slide for interface explanation / functionality.
b). Controls / Functionality: Standby
a). Default Display Screen: 0.05 % Running Standby During normal running the display will show the following message. When the generator is in “Standby” it will show the following message.
b). Top Level Menu Structure (Unprotected): The below menus / sub-menus can be accessed without an access password using the Display Boards navigation buttons. 1. Hours Meters • Fault Log
c). Service 2 : - Password Entry: To access menus 3 to 6 a “Service 1” password will need to be entered using the following method / navigation buttons. _ _ _ _ _ 2525 _ 1). Press and hold the“ ” & “ ” buttons on the main display panel until the password entry screen is displayed as shown above. 2). Using a combination of the “ ”, “ ” & “ “ enter the password “2525_” after which point you will now be able to access menus 1 through 6. When in protected menus 3 - 6, if no key activity is detected after 1 minute the display will automatically reset to the normal operational display as shown on slide 7. “a). Default Display Screen”.
d). Top Level Menu Structure (Continued, Protected): Following the successful entry of the “Service 1” password the following menus / sub-menus will now be accessible. 3.Customer Settings 4. Service 1: Setup
Top Level Menu Structure (Protected,Continued): • Service 2 • Timers 6. Service 3: I / O Menu
e).Sub-Menu parameter changes: ?.? ?? ?????? ?? = ?? To change any of the parameters in the protected Sub-Menus, please use the following method: Press “ “, the “=“ will flash then using the “ “ and “ “ change to the new value, then press “ “ to save the new setting. To exit any of the menus / sub-menus press both “ “ and “ “ together momentarily. Note: The change function is not available for all screens.
Menu 3). Menu 3 – Customer Settings:
Menu 3 – Customer Settings: 3.1 O2 Alarm Over-ride = 0 3.1 “O2 Alarm Over-ride” activation / deactivation screen When activated the O2 alarm is over-ridden and the generator will ignore any O2 alarms. Options: “0” = Disabled (Default) “1” = Enabled This function should only be used when performing an O2 Cell calibration as when activated, the controller will not react to the oxygen alarm and continue to cycle normally.
Menu 3 – Customer Settings (Continued): 3.2 O2 Calibration = 20.9% 3.2 “O2 Calibration screen, shows the current reading from the 02 analyser. Note: This reading must only be changed when performing an O2 Cell calibration.
Menu 3 – Customer Settings (Continued): 3.3 O2 Alarm Level = 0.55% 3.3 “O2 Alarm Level”, sets the purity level at which an O2 fault is initiated. Default settings: % Generators = 0.05% above the selected production purity ppm Generators = 5ppm above the selected production purity This menu cannot be accessed if Sub-Menu 4.5 is set to zero. Note: Please refer to O2 Alarm level specifications in the User Guide for all default settings.
Menu 3 – Customer Settings (Continued): 3.4 O2 Alarm Delay = 60s 3.4 “O2 Alarm Delay”, If the purity level exceeds the oxygen alarm level for a period longer than the set O2 alarm delay, the oxygen alarm will be activated and the gas will be vented to atmosphere via the O2 Vent solenoid valve. Default Setting: “60s”, (With a range of 0 to 600 seconds). Note: This function should only be changed after agreement has been reached with the end user to the new alarm delay setting.
Menu 3 – Customer Settings (Continued): 3.5 Start Clean Up Enable = 1 3.5 “Start Clean Up”, When enabled the bed cleaning cycles will run whenever the generator is powered up or comes out of standby mode and economy mode. Options: “1” = Enabled (Default) “0” = Disabled Note: If this is disabled, Sub-Menu 4.14 Economy Over-ride will also become disabled.
Menu 3 – Customer Settings (Continued): 3.6 Economy Enable = 1 3.6 “Economy Enable”, Enables or disables the Economy mode functionality. Options: “1” Enabled (Default) “0” Disabled Note: This can only be altered when the generator is in standby mode.
Menu 3 – Customer Settings (Continued): 3.7 Fault Relay On Stop = 0 3.7 “Fault Relay On Stop” When enabled the actuation of the Stop control will generate an alarm signal. Options: “0” Disabled (Default) “1” Enabled Note: When activated and in the event of the generator being stopped locally, the internal normally open relay will close and complete an externally powered electrical circuit to an externalbuzzer / light / alarm.
Menu 3 – Customer Settings (Continued): 3.8 O2 Analogue FSD = 1.0 3.8 “O2 Analogue FSD” Sets the Full Scale Deflection value for the 4–20mA Analogue output. Default Setting: Twice the generators specified purity (Up to a maximum of 6%). The FSD can be re-transmitted using the 4-20mA linear analogue output, which is a linear current source, which increases from 4mA (Zero Oxygen) to 20mA (Full Scale Deflection), Note: Please see the 4-20mA specifications in the User Guide for all default settings.
Menu 3 – Customer Settings (Continued): 3.9 O2 PPM Offset = 3.9 “O2 PPM Offset” Sets the ppm O2 cell calibrated offset value marked on a PPM cell. Range: “-10” to “+10” in 1 steps This Sub-Menu cannot be accessed if the O2 cell is set to % in Sub-Menu 4.1 Note: This value must be entered whenever a new PPM cell is fitted.
Menu 3 – Customer Settings (Continued): 3.10 Modbus Address = 1 3.10 “Modbus Address”, Sets the address for the generator when communicating on a network via the RS485 MODBUS port. Address range: “1” to “247”
Menu 3 – Customer Settings (Continued): 3.11 Remote Control = 1 3.11 “Remote Control”, Sets the mode of control for the generator. Options: “1” = Local (Default) “2” = Digital input “3” = Remote com Note: In all 3 modes the “Stop” button continues to function as normal.
Menu 4). Menu 4 – Service 1: Setup:
Menu 4 – Service 1 : Setup: 4.1 O2 Sensor Type = % 4.1 “O2 Sensor Type”, Sets the Oxygen cell type to either % or ppm. Note: Sub-Menus 3.3, 4.2 and 4.3 will be affected by altering this setting. This can only be altered when the generator is in standby mode.
Menu 4 – Service 1 : Setup (Continued): 4.2 Production Purity = % 4.2 “Production Purity”, Sets the required production purity of the generator Sub-Menu 3.3 will be affected by altering this setting. Note: This can only be altered when the generator is in standby mode.
Menu 4 – Service 1 : Setup (Continued): 4.3 Equalising = 1 4.3 “Equalising / Non-Equalising”, Enables or disables equalisation mode. Options: “0” Non-equalisation (Default for 10 and 100ppm). “1” Equalisation (Default for 500ppm to 5%) Note: This can only be changed when the generator is in standby mode.
Menu 4 – Service 1 : Setup (Continued): 4.4 Start Cycle = Rapid Cycle 4.4 “Start Cycle”, (Defaults = Rapid Cycle for % and Pure Start A / B for PPM). Note: This value can not be not be changed and will only change in line with the production purity.
Menu 4 – Service 1 : Setup (Continued): 4.5 O2 Sensor Fitted = 1 4.5 “O2 Sensor Fitted”, Selects the O2 Sensor input. Options: “1” = RS232 (Default, Internal O2 Sensor) “0” = Digital Input (external O2 Sensor)
Menu 4 – Service 1 : Setup (Continued): 4.6 Service Enable = 0 4.6 “Service Enable”, Enables or disables the service timer. Options: “0” = Disabled (Default) “1” = Enabled
Menu 4 – Service 1 : Setup (Continued): 4.7 Service Due At = 8000h 4.7 “Service Due At”, Sets the time in Run hours for the next Service. Default Setting: = “8000h” (With a range of 100 – 999900 in 100hsteps) This menu cannot be accessed if Sub-Menu 4.6 is set to zero. Note: Sub-Menu 1.2will be affected by altering this setting
Menu 4 – Service 1 : Setup (Continued): 4.8 Clear Fault Log = 0 4.8 “Clear Fault Log”, The fault log will be cleared if set to 1. Note: Sub-Menus 2.1 and 2.10will be affected by altering this setting. This function should only be carried by service engineers following a full service / diagnostic of the generator.
Menu 4 – Service 1 : Setup (Continued): 4.9 Pressure Sensor Fitted = 0 4.9 “Pressure Sensor Fitted” This should be enabled when a pressure sensor is fitted to the Outlet. Options available: “0” = Not fitted (Default) “1” = Fitted Note: This can only be altered when the generator is in standby mode.
Menu 4 – Service 1 : Setup (Continued): 4.10 Pressure Sensor Units = Bar 4.10 “Pressure Sensor Units” Sets the outlet pressure that will initiate the Economy cycle. Units available: “Bar” = Bar pressure (Default) “PSI” = Pounds per square inch “MPa” = Mega pascals Note: This menu cannot be accessed if Sub-Menu 4.9 is set to zero. Sub-Menus 4.11, 4.12, 6.4 and 6.5will be affected by altering this setting.
Menu 4 – Service 1 : Setup (Continued): 4.11 Eco Pressure High = 10.0 Bar 4.11 “Eco Pressure High” Sets the outlet pressure that will initiate the Economy cycle. Setting:“14.0 Bar” (Default, with a range of 4.1 – 20 in 0.1 Bar steps) Note: This menu cannot be accessed if Sub-Menu 4.9 is set to zero.This setting must be at least 0.1 Bar higher than the “Eco Pressure Low” setting in Sub-Menu 4.12.
Menu 4 – Service 1 : Setup (Continued): 4.12 Eco Pressure Low = 9.5 Bar 4.12 “Eco Pressure Low” Sets the outlet pressure that will initiate normal operation. Setting: “13.5 Bar” (Default, with a range of 4.0 to 19.9 in 0.1 Bar steps) Note: This menu cannot be accessed if Sub-Menu 4.9 is set to zero.This setting must be at least 0.1 Bar Lower than the “Eco Pressure High” setting in Sub-Menu 4.11.
Menu 4 – Service 1 : Setup (Continued): 4.13 Economy Period = 5m 4.13 “Economy Period” Sets the economy period in minutes (Default setting = “5m”). Default Setting: “5m” (With a range of 1 to 120 in 1m steps) Note: This can only be altered when the generator is in standby mode.
Menu 4 – Service 1 : Setup (Continued): 4.14 Economy Over-ride = 0 4.14 “Economy Over-ride” Sets economy over-ride function. (Default setting = “0”). Options available: “0” = Disabled “1” = Enabled When enabled and with the generator in economy mode a clean up cycle will be performed in line with the “Economy Over-ride Period” in Sub Menu 4.15 Note: This menu cannot be accessed if Sub Menu 3.5 is set to zero.
Menu 4 – Service 1 : Setup (Continued): 4.15 Eco Over-ride Period = 20m 4.15 “Eco Over-ride Period” Sets the economy over-ride period in minutes When the generator is in Economy mode a clean up cycle will be performed once every “Economy over-ride period”. Default Setting: “20m”, (With a range of 1 to 600 in steps of 1m) Note: With “Eco Over-ride Period” enabled, the generator will go on-line immediately after seeing a demand for gas.
Menu 4 – Service 1 : Setup (Continued): 4.16 Modbus Status 4.15 “Modbus Status” Allows the generator to be controlled via Modbus (Default = “0”). Options available: “0” = Disabled “1” = Enabled Note: If MODBUS status is changed to 0 when Sub Menu 3.11 is already set to “3”, then Sub Menu 3.11 will revert to “1” (Local control).
Menu 4 – Service 1 : Setup (Continued): 4.17 Generator Type = Maxigas 4.17 “Generator Type” Sets the model of generator Options available: “Maxigas” “Midigas” Note: This can only be altered when the generator is in standby mode.
Menu 5). Menu 5 – Service 2 : Timers:
Menu 5 – Service 2 : Timers: 5.1 Hours Run = 5234h 5.1 “Hours Run” Indicates the total number of running mode hours Setting (from new): “0h” (Default, with a range of 0 to 999900 in 100h steps” Note: Sub Menu 1.1will be affected by altering this setting.
Menu 5 – Service 2 : Timers (Continued): 5.2 Hours Economy = 25h 5.2 “Hours Economy” Indicates the total number of economy mode hours Default Setting (from new): “0h” (With a range of 0 to 999900 in 100h steps” Note: Sub Menu 1.3 will be affected by altering this setting.
Menu 5 – Service 2 : Timers (Continued): 5.3 Hours N2 Vent = 0h 5.2 “Hours N2 Vent” Indicates the total number of N2 vent mode hours Setting (from new): “0h” (Default, with a range of 0 to 999900 in 100h steps” Note: Sub Menu 1.3 will be affected by altering this setting.
Menu 6). Menu 6 – Service 3 : I/O Menu:
Menu 6 – Service 3 : I/O Menu: 6.1 Digital Input Summary 6.1 “Digital Input Summary” Current status with regards to “JP 19”, “INPUT 1” to “INPUT 4”, on the control board. “0” = Not connected and “1” = Connected Note: This menu is read only 6.1 1 . . 4 1 0 0 0
Menu 6 – Service 3 : I/O Menu (Continued): 6.2 Digital Output Summary 6.2 “Digital Output Summary” Current status with regards to “JP 1” to “JP 11”, “JP 17 and “JP 18” on the control board. “0” = Not energised and “1” = Energised Note: This menu is read only. 6.2 1 . . . 4 . . . 8 . . .12 0 0 0 0 0 0 0 0 0 0 1 0
Menu 6 – Service 3 : I/O Menu (Continued): 6.3 Pressure Sensor Input = 13.9 Bar 6.3 “Pressure Sensor Input” Indicates the current reading from the outlet pressure sensor Note: This menu cannot be accessed if Sub Menu 4.8 is set to zero.